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US3096822A
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US
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Hydraulic method and apparatus for flexing stuck pipe in well bores
Assignee: Individual
•
Filing: 1959-10-19
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Granted: 1963-07-09
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Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 Elmer D Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:21
CPC Classifications
E; E21; E21B; E21B29/00; E21B29/10; E21B31/00; E21B31/12; E21B31/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A METHOD OF FLEXING PIPE STUCK IN A WELL BORE EMPLOYING A FLEXIBLE MATERIAL BODY INSERTABLE WITHIN THE PIPE TO BE FLEXED AND MOVABLE THERETHROUGH, COMPRISING THE STEPS OF RUNNING SAID BODY TO A LEVEL ABOVE THE STUCK AREA OF THE PIPE TO BE FLEXED, FLEXING SAID BODY AND THE PIPE THEREWITH, MOVING SAID BODY, WHILE STILL IN THE FLEXED POSITION DOWNWARDLY THROUGH THE STUCK PORTION OF THE PIPE, DEFORMING THE PIPE AS IT IS MOVED DOWNWRDLY THERETHROUGH SAID PERMITTING THE BODY AND PIPE TO STRAIGHT-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |